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10 g of dolomite contains...

10 g of dolomite contains

A

0.1 mole of `CaCO_(3)`

B

0.108 g atom of C

C

`6 xx 10^(23)` atoms of Ca

D

1 g equivalent of Ca

Text Solution

Verified by Experts

The correct Answer is:
B
Dolomite : `CaCO_(3).MgCO_(3)` (wt. of 1 mole = 184 g)
So, 10 g of dolomite contains : `CaCO_(3) rArr (10)/(184)` mole = 0.054 mole
`MgCO_(3) rArr (10)/(184)` mole = 0.054 mole
`:. Ca rArr 0.054` mole or 0.108 g eq `c rArr 0.054 " mole " xx 2 = 0.198 " mole"`
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